Investor Presentaiton
Factors influencing the boundary layer height
1. the inversion temperature layer below the bottom of troposphere
Pressure (hPa)
Pressure (hPa)
(a)
08:00 BST 12 December
500
600
700
800
900
1000
+............
-10
-5
0
500
+
600
700
800
900
5
10
Temperature (°C)
(b)
08:00 BST 16 December
1000
-15
-10
-5
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- OBS
15
Era-interim
0
5
10
15
Temperature
The strong inversion layer in the lower troposphere
over the Sichuan Basin leads to the accumulation of a
large amount of water vapor below the inversion layer.
The inversion at the height of the plateau over eastern
China is generated by the advection of warm air from
the plateau, which provides favorable thermodynamic
conditions for mid-level clouds
1.daytime: reflect and absorb a large amount of
downward shortwave radiation, reducing the
downward shortwave radiation to the basin surface.
Then, the surface heating to the atmosphere is very
slow
2.nighttime: stop the upward longwave radiation from
the surface, the near surface temperature decreases
slowly, the diurnal temperature range is smallView entire presentation